1KCAPI_MD_SHA256(3)           Programming Interface          KCAPI_MD_SHA256(3)
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NAME

6       kcapi_md_sha256 - SHA-256 message digest on one buffer
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SYNOPSIS

9       ssize_t kcapi_md_sha256(const uint8_t * in, size_t inlen,
10                               uint8_t * out, size_t outlen);
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ARGUMENTS

13       in
14           [in] buffer with input data
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16       inlen
17           [in] length of input buffer
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19       out
20           [out] buffer for message digest
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22       outlen
23           [in] length of out
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DESCRIPTION

26       With this one-shot convenience function, a message digest of the given
27       buffer is generated. The output buffer must be allocated by the caller
28       and have at least the length of the message digest size for the chosen
29       message digest.
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31       return size of message digest upon success; -EIO - data cannot be
32       obtained; -ENOMEM - buffer is too small for the complete message
33       digest, the buffer is filled with the truncated message digest
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AUTHOR

36       Stephan Mueller <smueller@chronox.de>
37           Author.
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40libkcapi Manual 1.4.0              July 2023                KCAPI_MD_SHA256(3)
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